This standard specifies the insulation test method for flexible ducts installed in ventilation, smoke control, and air conditioning facilities of buildings.
KS F 2839-2014 history
2019KS F 2839-2019 Methods of fire resistance tests for flexible ducts
2014KS F 2839-2014 Methods of fire resistance tests for flexible ducts
2007KS F 2839-2007 Methods of fire resistance tests for flexible ducts